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Reducing Operation Emissions and Improving Work Efficiency Using a Pure Electric Wheel Drive Tractor

Engineering 2024年第6期37卷 230-245页

作者： Chang-Kai Wen Wen ren Qing-Zhen Zhu Chun-Jiang Zhao Zhen-Hao Luo Sheng-Li Zhang Bin Xie Zhi-jun Meng Research Center of Intelligent Equipment Beijing Academy of Agriculture and Forestry SciencesBeijing 100097China State Key Laboratory of Intelligent Agricultural Power Equipment Beijing 100097China BYD Company Limited Shenzhen 518118China College of Agricultural Engineering Jiangsu UniversityZhenjiang 212013China College of Engineering China Agricultural UniversityBeijing 100083China

In response to the problems of excessive greenhouse-gas and particulate emissions and the low traction efficiency of conventional diesel tractors in the field,a purely electric wheel-side drive tractor was studied,including an electric motor drive system,a battery ballast system,and an electro–hydraulic suspension *** paper develops a dynamics model of an electric tractor-ploughing unit under complex soil conditions,leading to the proposal of an active control method for drive wheel torque and a joint control method for the traction force of the suspension system and the front-and rear-axle loads of a ***,the tractor is prototyped and assembled,and ploughing tests are carried *** ploughing results show that the active torque-distribution control method proposed in this study reduces the tractor slip by 14.83%and increases the traction efficiency by 10.28%compared with the average torquedistribution *** with the conventional traction control mode,the joint control method for traction and ballast proposed in this paper results in a 3.7%increase in traction efficiency,a 15.05%decrease in slip,and a 4.9%reduction in total drive motor energy *** study will help to improve the operation quality and traction efficiency of electric tractors in complex soil conditions.

关键词： Electric tractor Ploughing unit Torque distribution Active ballast Traction performance

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契丹社会风俗观念释例

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辽宁师范大学学报（社会科学版） 2008年第5期31卷 107-113页

作者：任爱君赤峰学院历史系内蒙古赤峰024000

10世纪前期的契丹社会,曾经呈现出多种文化因素共同影响的具体表现形式。但是,契丹人的社会观念、价值观念、宗教信仰观念等具象的表现形式,仍然散发着浓厚的契丹草原风格。通过对这些历史现象的阐发,可以清晰地领略契丹社会具体发展面貌。

关键词：契丹人风俗观念契丹社会

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Effects of NLRP3 Inflammasome Mediated Pyroptosis on Cardiovascular Diseases and Intervention Mechanism of Chinese Medicine

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Chinese Journal of Integrative Medicine 2024年第5期30卷 468-479页

作者： ZHONG Yi LI Xin-yue LIANG Tian-jun DING Bao-zhu MA Ke-xin ren Wen-xuan LIANG Wen-jie College of Integrated Traditional Chinese and Western Medicine Hebei University of Chinese MedicineHebei Key Laboratory of Integrated Traditional Chinese and Western Medicine in Liver and Kidney DiseasesInstitute of Integrated Traditional Chinese and Western MedicineShijiazhuang 050200China Department of Cardiovascular Internal Medicine the Second Affiliated Hospital of Jiujiang UniversityJiujiangJiangxi Province 332000China Graduate School Hebei Medical UniversityShijiazhuang 050017China Rural Physician College Hebei Medical UniversityShijazhuang 050017China Medical Department the First Hospital of Hebei Medical UniversityShijiazhuang 050030China

Activation of the NOD-like receptor protein 3(NLRP3)inflammasome signaling pathway is an important mechanism underlying myocardial pyroptosis and plays an important role in inflammatory damage to myocardial tissue in patients with cardiovascular diseases(CVDs),such as diabetic cardiomyopathy,ischemia/reperfusion injury,myocardial infarction,heart failure and *** RNAs(nc RNAs)are important regulatory *** Chinese medicine(CM)compounds,including their effective components,can regulate pyroptosis and exert myocardium-protecting *** mechanisms underlying this protection include inhibition of inflammasome protein expression,Toll-like receptor 4–NF-κB signal pathway activation,oxidative stress,endoplasmic reticulum stress(ERS),and mixed lineage kinase 3 expression and the regulation of silent information regulator *** NLRP3 protein is an important regulatory target for CVD prevention and treatment with *** the effects of the interventions mediated by CM and the related mechanisms provides new ideas and perspectives for CVD prevention and treatment.

关键词： pyroptosis cardiovascular diseases Chinese medicine NOD-like receptor protein 3 mechanisms

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Diagnostic performance of dynamic contrast-enhanced magnetic resonance imaging parameters and serum tumor markers in rectal carcinoma prognosis

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World Journal of Gastrointestinal Oncology 2024年第5期16卷 1796-1807页

作者： ren-Qi Mu jun-Wei Lv Cai-Yun Ma Xiao-Hui Ma Dong Xing Hou-Sheng Ma Department of Radiology Yantai Mountain HospitalYantai 264001Shandong ProvinceChina Department of Radiology Yantai Yuhuangding HospitalYantai 264000Shandong ProvinceChina Department of Gynaecology Yantai Yuhuangding HospitalYantai 264000Shandong ProvinceChina The First Clinical Medical College Xinjiang Medical UniversityUrumqi 830011Xinjiang Uygur Autonomous RegionChina

BACKGROUND Rectal carcinoma(RC),one of the most common malignancies globally,presents an increasing incidence and mortality year by year,especially among young people,which seriously affects the prognosis and quality of life of *** present,dynamic contrast-enhanced magnetic resonance imaging(DCE-MRI)parameters and serum carbohydrate antigen 19-9(CA19-9)and CA125 Levels have been used in clinical practice to evaluate the T stage and differentiation of ***,the accuracy of these evaluation modalities still needs further *** study explores the application and value of these methods in evaluating the T stage and differentiation degree of *** To analyze the diagnostic performance of DCE-MRI parameters combined with serum tumor markers(TMs)in assessing pathological processes and prognosis of RC *** A retrospective analysis was performed on 104 RC patients treated at Yantai Yuhuangding Hospital from May 2018 to January *** were categorized into stages T1,T2,T3,and T4,depending on their T stage and differentiation *** addition,they were assigned to low(L group)and moderate-high differentiation(M+H group)groups based on their differentiation *** levels of DCE-MRI parameters and serum CA19-9 and CA125 in different groups of patients were *** addition,the value of DCE-MRI parameters[volume transfer constant(Ktrans),rate constant(Kep),and extravascular extracellular volume fraction(Ve)in assessing the differentiation and T staging of RC patients was ***,the usefulness of DCE-MRI parameters combined with serum CA19-9 and CA125 Levels in the evaluation of RC differentiation and T staging was *** Ktrans,Ve,CA19-9 and CA125 were higher in the high-stage group and L group than in the low-stage group and M+H Group,respectively(P<0.05).The areas under the curve(AUCs)of the Ktran and Ve parameters were 0.638 and 0.694 in the diagnosis of high and low stages,respectively,and 0.672 and 0

关键词： Rectal carcinoma Volume transfer constant Rate constant Extravascular extracellular volume fraction Serum carbohydrate antigen 19-9 Serum carbohydrate antigen 125

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Prognostic significance and relationship of SMAD3 phosphoisoforms and VEGFR-1 in gastric cancer:A clinicopathological study

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World Journal of Gastrointestinal Oncology 2024年第1期16卷 118-132页

作者： Shi-Lin Lv Pei Guo jun-Rong Zou ren-Sheng Chen Ling-Yu Luo De-Qiang Huang Hospital of Gastroenterology Institute of Digestive DiseasesThe First Affiliated Hospital of Nanchang UniversityNanchang 330006Jiangxi ProvinceChina Department of Pathology Shenzhen Hospital of Southern Medical UniversityShenzhen 518000Guangdong ProvinceChina Institute of Urology The First Affiliated Hospital of Gannan Medical UniversityGanzhou 341000Jiangxi ProvinceChina Department of Pathology The First Affiliated Hospital of Nanchang UniversityNanchang 330006Jiangxi ProvinceChina

BACKGROUND The TGF-β/SMAD3 and VEGFR-1 signaling pathways play important roles in gastric cancer ***3 phosphorylation is a crucial prognostic marker in gastric *** To determine the prognostic value and relationship of SMAD3 phospho-isoforms and VEGFR-1 in gastric *** This was a single-center observational study which enrolled 98 gastric cancer patients and 82 adjacent normal gastric tissues from patients aged 32-84 years(median age 65)between July 2006 and April *** were followed up until death or the study ended(median follow-up duration of 28.5 mo).The samples were used to generate tissue microarrays(TMAs)for immunohistochemical(IHC)*** expressions of TGF-β1,pSMAD3C(S423/425),pSMAD3L(S204),and VEGFR-1 in gastric cancer(GC)tumor tissue and normal tissue were measured by IHC staining using TMAs obtained from 98 GC *** and survival information of the patients was recorded by Outdo Biotech from May 2007 to July *** relationship between TGF-β1,pSMAD3C(S423/425),pSMAD3L(S204),and VEGFR-1 protein expression levels was analyzed using Pearson's correlation *** relationship between protein expression levels and clinicopathological parameters was analyzed using the Chi-squared test.A survival curve was generated using the Kaplan-Meier survival *** TGFβ-1 and VEGFR-1 expression was significantly upregulated in gastric cancer tissue compared to adjacent noncancerous *** positive expression of phosphorylated isoforms of Smad3 varied depending on the phosphorylation site[pSMAD3C(S423/425):51.0%and pSMAD3L(S204):31.6%].High expression of pSMAD-3L(S204)was significantly correlated with larger tumors(P=0.038)and later N stages(P=0.035).Additionally,high expression of VEGFR-1 was closely correlated with tumor size(P=0.015)and pathological grading(P=0.013).High expression of both pSMAD3L(S204)and VEGFR-1 was associated with unfavorable outcomes in terms of overall survival(OS).Multiva

关键词： Gastric cancer pSMAD3L(S204) pSMAD3C(S423/425) Survival Transforming growth factor-β1 VEGFR-1

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Mechanism, prevention, and control of mining-induced dynamic disasters in underground metal mines in China: Challenges and solutions

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Journal of Central South University 2024年第8期31卷 2549-2606页

作者： Li, Peng Cai, Mei-feng Miao, Sheng-jun ren, Fen-hua Gorjian, Mostafa Peng, Chao Key Laboratory of Ministry of Education for Efficient Mining and Safety of Metal Mines University of Science and Technology Beijing Beijing China Department of Earth Ocean and Atmospheric Sciences University of British Columbia Vancouver Canada Deep Mining Laboratory of Shandong Gold Group Co. Ltd. Laizhou China

Metal mineral resources play an indispensable role in the development of the national economy. Dynamic disasters in underground metal mines seriously threaten mining safety, which are major scientific and technological problems to be solved urgently. In this article, the occurrence status and grand challenges of some typical dynamic disasters involving roof falling, spalling, collapse, large deformation, rockburst, surface subsidence, and water inrush in metal mines in China are systematically presented, the characteristics of mining-induced dynamic disasters are analyzed, the examples of dynamic disasters occurring in some metal mines in China are summarized, the occurrence mechanism, monitoring and early warning methods, and prevention and control techniques of these disasters are highlighted, and some new opinions, suggestions, and solutions are proposed simultaneously. Moreover, some shortcomings in current disaster research are pointed out, and the direction of efforts to improve the prevention and control level of dynamic disasters in China’s metal mines in the future is prospected. The integration of forward-looking key innovative theories and technologies in the abovementioned aspects will greatly enhance the cognitive level of disaster prevention and mitigation in China’s metal mining industry and achieve a significant shift from passive disaster relief to active disaster prevention.

关键词： dynamic disasters mechanism monitoring and early warning prevention and control underground metal mines

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Performance and enhanced oil recovery efficiency of an acid-resistant polymer microspheres of anti-CO2 channeling in low-permeability reservoirs

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Petroleum Science 2024年第4期21卷 2420-2432页

作者： Hai-Zhuang Jiang Hong-Bin Yang Ruo-Sheng Pan Zhen-Yu ren Wan-Li Kang jun-Yi Zhang Shi-Long Pan Bauyrzhan Sarsenbekuly State Key Laboratory of Deep Oil and Gas China University of Petroleum (East China) School of Petroleum Engineering China University of Petroleum (East China) Oil and Gas Engineering Research Institute School of Energy and Petroleum Industry Kazakh-British Technical University

CO2flooding is a vital development method for enhanced oil recovery in low-permeability reservoirs,However,micro-fractures are developed in low-permeability reservoirs,which are essential oil flow channels but can also cause severe CO2gas channeling ***,anti-gas channeling is a necessary measure to improve the effect of *** kind of anti-gas channeling refers to the plugging of fractures in the deep formation to prevent CO2gas channeling,which is different from the wellbore *** microspheres have the characteristics of controllable deep plugging,which can achieve the profile control of low-permeability fractured *** acidic environments with supercritical CO2,traditional polymer microspheres have poor expandability and plugging *** on previous work,a systematic evaluation of the expansion performance,dispersion rheological properties,stability,deep migration,anti-CO2channeling and enhanced oil recovery ability of a novel acid-resistant polymer microsphere（DCNPM-A） was carried out under CQ oilifield conditions（salinity of85,000 mg/L,80℃,pH=3）.The results show that the DCNPM-A microsphere had a better expansion performance than the traditional microsphere,with a swelling rate of *** microsphere dispersion with a concentration of 0.1%-0.5% had the advantages of low viscosity,high dispersion and good injectability in the low permeability fractured *** the acidic environment of supercritical CO2,DCNPM-A microspheres showed excellent stability and could maintain strength for over 60 d with less *** core experiments,DCNPM-A microspheres exhibited delayed swelling characteristics and could effectively plug deep *** a plugging rate of 95%,the subsequent enhanced oil recovery of CO2flooding could reach 21.03%.The experimental results can provide a theoretical basis for anti-CO2channeling and enhanced oil recovery in low-permeability fractured reservoirs.

关键词： Low-permeability reservoir Anti-CO 2 channeling Polymer microsphere Acid resistance

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教师教学竞赛活动质量管理保障机制的构建与实践——以天津一商校为例

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天津职业院校联合学报 2020年第4期22卷 98-102页

作者：任爱军天津市第一商业学校天津300180

总结天津一商校教师教学竞赛活动质量管理保障机制的构建与实践,从教师教学竞赛活动的意义、必要性,质量保障机制构建和实践应用等方面进行了介绍和研究分析。

关键词：教师竞赛质量管理保障机制实践应用

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浅论苏轼对传统婉约词题材内容的扩大与革新

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天津职业院校联合学报 2020年第6期22卷 124-128页

作者：任爱军天津市第一商业学校天津300180

文章在对宋代大文豪苏轼婉约词的鉴赏分析中,独辟蹊径,发掘苏轼词婉约风格词的题材内容,抽取分析、研究鉴赏出苏轼对宋代婉约词派的贡献——拓宽了婉约词的题材内容,从而提升了传统婉约词的旧有格调,提高了婉约词的品位.文章从三个方面... 详细信息

文章在对宋代大文豪苏轼婉约词的鉴赏分析中,独辟蹊径,发掘苏轼词婉约风格词的题材内容,抽取分析、研究鉴赏出苏轼对宋代婉约词派的贡献——拓宽了婉约词的题材内容,从而提升了传统婉约词的旧有格调,提高了婉约词的品位.文章从三个方面进行了阐述:借生动具体的形象,婉曲缠绵的格调,抒写政治情怀;在吊古伤今中,蕴含着作者深广的人生感慨和忧患;借婉约之笔抒写真挚友情.

关键词：苏轼婉约词题材内容政治人生友情

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开展QC小组活动降低静脉留置针穿刺静脉炎发生率

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中国城乡企业卫生 2015年第4期30卷 142-143页

作者：任爱军天津市职业病防治院外科天津300011

目的通过该科开展质量控制(Quality Control,QC)小组活动降低静脉留置针穿刺静脉炎的发生率。方法该科2014年5月开展QC小组活动,小组成员运用头脑风暴法具体讨论进行现状调查,找出静脉炎发生的原因,并根据静脉炎发生的原因进行根因分析... 详细信息

目的通过该科开展质量控制(Quality Control,QC)小组活动降低静脉留置针穿刺静脉炎的发生率。方法该科2014年5月开展QC小组活动,小组成员运用头脑风暴法具体讨论进行现状调查,找出静脉炎发生的原因,并根据静脉炎发生的原因进行根因分析,设定预期达到目标数值,制定相应的对策和具体措施实施到实际护理工作中。结果通过规范护士日常操作,培训护士合理安排输液顺序和速度,规范导管固定方法等措施的实施,降低了静脉留置针穿刺静脉炎发生率。结论开展QC小组活动有利于提高护理质量,降低静脉留置针穿刺静脉炎发生率。

关键词： QC活动静脉炎发生率

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